I have been a walker for 3 years worth of competitions and it still bothers me, feeling left out, when announcers do not recognize us walkers in a race. Plenty of this recently at WDW's Half and Full pre-race and during the races. We do the same distances and often spend much more time out there. Seems to me that the true endurance athletes are the walkers. Just think, 2+ hours for a marathon compared to 6+. I know that I feel good when the tortoise passes the hare.